高荣俊,谢勇,顾行发,韩杰,孙源,刘景旺

• 1:中国科学院遥感与数字地球研究所
• 2:中国科学院大学研究生院
• 3:国家航天局航天遥感论证中心
• 4:北华航天工业学院科学技术处

摘要(Abstract)：

针对传统的地形辐射校正模型无法适用复杂地表覆盖类型而导致的校正精度较低的问题,该文提出了一种考虑像元植被覆盖因子的模型。山区遥感影像像元大部分为植被与岩石、裸土的混合像元,针对混合像元中岩石、裸土部分应用太阳-地表-传感器模型,而对于植被覆盖区则采用考虑植被垂直生长特性的太阳-树冠-传感器模型,两模型用像元植被覆盖因子拟合为新的太阳-植被覆盖因子-传感器模型。利用覆盖江西实验区的Landsat-8陆地成像仪影像和数字高程模型数据进行了校正比对分析,结果表明该方法可有效地消除地形起伏对辐射亮度的影响。

关键词(KeyWords)： 辐射校正;混合像元;植被覆盖因子;数字高程模型

Abstract:

Keywords:

基金项目(Foundation): 民用航天十二五预研项目D040201(Y1K00200KJ);; 国家自然科学基金青年基金项目(41101402);; 河北省教育厅重点项目(ZD2014089)

作者(Author): 高荣俊,谢勇,顾行发,韩杰,孙源,刘景旺

DOI: 10.16251/j.cnki.1009-2307.2016.04.027

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